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🥶 Cold stress risk assessment & wind chill calculator

Assess cold-work risk in minutes: enter air temperature and wind speed to get the NOAA Wind Chill Temperature, a frostbite risk band, a maximum-exposure and warming-break schedule, an ISO 11079 IREQ clothing-insulation (clo) recommendation, and a printable crew briefing card. Aligned to ACGIH Cold Stress TLVs and OSHA. Exports to Word and print.

Site & assessment
Step 1 — Environment
Step 2 — Exposure

⚠️ This is a screening tool to structure your cold-work review — it is not a stamped exposure assessment. The Wind Chill Temperature uses the NOAA/Environment Canada formula and applies to exposed skin in moving air; it does not account for solar load, radiant cooling, immersion or individual factors. Frostbite times, exposure limits and IREQ clothing values are indicative starting points based on ACGIH Cold Stress TLVs and ISO 11079 — measure real conditions, follow your local standard, and have a competent person review the result for critical work.

Aligned to the ACGIH Cold Stress TLVs, ISO 11079:2007 (ergonomics of the thermal environment — required clothing insulation, IREQ) and OSHA Technical Manual (OTM) Section III, Chapter 4 (Heat & Cold Stress). The NOAA Wind Chill Temperature index is the standard adopted by the U.S. National Weather Service and Environment Canada (2001). Indicative only — not legal advice.